Scroll compressor

Abstract

The present invention relates to a scroll compressor. The scroll compressor is configured to have a discharge outlet ( 113 ) of a fixed scroll ( 110 ) and a discharge guide groove of an orbiting scroll ( 120 ) for med in non-circular shapes such as a heart shape. Accordingly, it is capable of preventing a refrigerant from being incompletely or excessively compressed without additional bypass valves, thereby being capable of reducing a fabrication cost of the compressor. And, since it is not required to consider interference by other components at the time of installation of a bypass valve, it is capable of simplifying a fabrication process.

1 . A scroll compressor comprising:
 a fixed scroll provided with a spiral shaped fixed wrap; and   an orbiting scroll provided with an orbiting wrap engaged with the fixed wrap of the fixed scroll and forming compression chambers between the fixed wrap and the orbiting wrap by performing an orbiting motion with respect to the fixed scroll,   wherein a discharge outlet is formed at a periphery of a start end of the fixed wrap of the fixed scroll so as to discharge a refrigerant having been compressed in the compression chambers and formed in a non-circular shape.   
   
   
       2 . The scroll compressor of  claim 1 , wherein the discharge outlet is configured to be communicated with an outer compression chamber of a start end of the orbiting wrap before the fixed wrap and the orbiting wrap are spaced from each other. 
   
   
       3 . The scroll compressor of  claim 2 , wherein the discharge outlet comprises a first discharge portion and a second discharge portion communicated with each other, and
 wherein the first discharge portion is located at an inner discharge chamber of the orbiting wrap and the second discharge portion is formed at the outer compression chamber of the orbiting wrap when the fixed wrap and the orbiting wrap are spaced from each other.   
   
   
       4 . The scroll compressor of  claim 1 , wherein the discharge outlet is formed to be long in a direction toward the end point from the start point of the fixed wrap on the basis of a formation direction of the fixed wrap. 
   
   
       5 . The scroll compressor of  claim 1 , wherein the discharge outlet is formed within a range of tangent lines when drawing the tangent lines at two points at which the fixed wrap and the orbiting wrap are tangent to each other right before the fixed wrap and the orbiting wrap are spaced from each other. 
   
   
       6 . The scroll compressor of  claim 1 , wherein the discharge outlet is approximately formed in a heart shape in a planar projection. 
   
   
       7 . A scroll compressor comprising:
 a fixed scroll provided with a spiral shaped fixed wrap; and   an orbiting scroll provided with an orbiting wrap engaged with the fixed wrap of the fixed scroll and forming compression chambers between the fixed wrap and the orbiting wrap by performing an orbiting motion with respect to the fixed scroll,   wherein a discharge outlet is formed at a periphery of a start end of the fixed wrap of the fixed scroll so as to discharge a refrigerant having been compressed in the compression chambers,   wherein a discharge guide groove having a specific depth is formed at the periphery of a start end of the orbiting wrap of the orbiting scroll so as to guide the refrigerant having been compressed in the compression chambers to the discharge outlet, and   wherein the discharge outlet and the discharge guide groove are respectively formed in non-circular shapes.   
   
   
       8 . The scroll compressor of  claim 5 , wherein the discharge outlet and the discharge guide groove are configured to be symmetric to each other on the basis of a moving path of the compression chambers in a planar projection. 
   
   
       9 . The scroll compressor of  claim 5 , wherein the discharge outlet and the discharge guide groove are respectively configured to be communicated with an outer compression chamber of each start end of the fixed wrap and the orbiting wrap when the fixed wrap and the orbiting wrap start to be spaced from each other. 
   
   
       10 . The scroll compressor of  claim 9 , wherein the discharge outlet comprises a first discharge portion and a second discharge portion communicated with each other and the discharge guide groove comprises a first discharge guide portion and a second discharge guide portion communicated with each other, and
 wherein the first discharge portion and the first discharge guide portion are respectively located at the inner discharge chamber of the orbiting wrap and the fixed wrap when the fixed wrap and the orbiting wrap are spaced from each other, while the second discharge portion and the second discharge guide portion are respectively located at the outer compression chambers of the fixed wrap and the orbiting wrap when the fixed wrap and the orbiting wrap are spaced from each other.   
   
   
       11 . The scroll compressor of  claim 10 , wherein the second discharge portion and the second discharge guide portion are formed in an opposite direction. 
   
   
       12 . The scroll compressor of  claim 5 , wherein the discharge outlet is formed within a range of tangent lines when drawing the tangent lines at two points at which the fixed wrap and the orbiting wrap are tangent to each other right before the fixed wrap and the orbiting wrap are spaced from each other. 
   
   
       13 . The scroll compressor of  claim 5 , wherein the discharge outlet and the discharge guide groove are approximately formed in heart shapes in a planar projection.